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用化学还原-共沉淀法合成了锂离子电池纳米锌锡锑三元合金负极材料ZnSnSb2.通过XRD、TEM和电化学测试对材料进行了表征.所制备的材料粒径大小分布在5-15nm之间.在充放电电压为1.5V到0V范围内,初始可逆充电容量为708mAh/g,经过20周的循环后,充电容量保持为82.1%.充放电电压范围为0.9V到0V时,初始可逆充电容量为329mAh/g,经过20次充放电循环后,可逆充电容量仍然保持在95.7%.由于材料中非活性物质Li3Sb的作用以及材料所具有的纳米结构,使其循环性能大大提高.

参考文献

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